A Sparkline is a short graphic that displays trend information and is aligned with rows of some tabular data. Without taking up a lot of room, sparklines (also known as micro-charts) can provide sophisticated visualisation capabilities to tabular data.
Metrics - 1 or more metrics can be added to this visualization Attributes - Minimum one attribute is required. We recommend adding one time-based attribute as a trend over time is best represented by a sparkline. However, any other attribute can also be used. Use as Filter Option - Available
Marker properties have been moved to Series properties in Vitara charts as of version 4.6. The modified marker characteristics are used by all charts that support Series as Line/Area. Enable marker, Marker type, and Marker size choices are available to enable marker properties when the property editor is opened by clicking the “Edit” button and selecting the Series tab. There are several different markers to choose from. Navigate to the “Marker” tab, select the marker type, and then click “select.” The markers’ size can also be changed. Simply type a number into the text input field labelled “Marker Size” or use the increase/decrease buttons.
Below are the screenshots with the marker options.
In the below example, the Profit metric’s line changed to line secondary axis in series property and ‘Tree’ marker is applied for the profit metric. Below is the screenshot with the marker applied in the chart.
We can turn the sparkline chart into the combinational chart by changing the series type in the series tab.
Line, Area, and Sparkline charts now have line options as of Vitara chart version 4.5. The three new options are line width, line style, and line style. The screenshots with the line options are shown below.
Line width - 2 Line width - Violet Line style - LongDash
In the business point of view, certain part of the chart needs to be highlighted to draw more attention from the desicion makers. For example, highlight the stores where total sales is greater than a specific value or highlight the top 10 products whose sales is high during last year’s winter. Thresholds are very useful objects in these use cases.
Thresholds will display some conditional formatting in a chart to highlight certain data points depending on predefined criteria.The criteria are attribute or metric qualifications. If a qualification’s expression evaluates to TRUE, the report displays the threshold. We can also include markers in thresholds.
To apply thresholds in vitara charts, hover the cursor on the chart. Vitara chart will display an ‘Edit’ button. When you click on this ‘Edit’ button the properties window will pop out. Select the thresholds tab to open threshold editor. In the window you can add a new threshold or delete any existing threshold or modify the existing threshold.
Note: From 4.6 version we can apply thresholds using attributes. The source drop down box in the threshold editor window will list all the attributes and metrics in the chart. we can select an attribute as source and define a threshold condition. The target of the threshold depends on the series of the chart. This means, if the chart series is created using metrics then target drop down box will display the metrics. If we enabled ‘color by’ mode, by adding an attribute to the ‘color by’ drop zone in the dossier’s editor panel, the chart series will be created using attributes. In this case the threshold target drop down box will show all the elements of attribute used in the color by drop zone. In this case we can set threshold target using attribute.
In the threshold editor window apply source, target, threshold condition and the other related information to set a threshold on the chart.
After giving all the inputs click on ‘Apply’ button.
From version 4.9.0, we can use pattern fill in thresholds, certain part of the chart can be filled with a pattern.
Play by - animation shows the chart for each element of the first attribute. For more details about the play by feature please refer to play-by.
The steps to set a background image for all Vitara charts are explained in backgroundImage.
Spark Line chart supports small multiples feature. Small multiples feature is explained in smallMultiples.
From the version 4.4, data markers feature is introduced in the Sparkline chart. To know about Data Markers feature please click Here.
From version 5.0, Gradient color fill can be added where the series property is available.
It can be enabled by selecting options from the series tab for individual series.
It will show the color palette, which will have two selection handles to choose two colors that will render from beginning to end on the series. (From left to right)